/Engine/Source/Runtime/Core/Public/Templates/SharedPointerInternals.h
Creates a custom reference controller with a specified deleter
namespace SharedPointerInternals { template<ESPMode Mode, typename ObjectType, typename DeleterType> [TReferenceControllerBase](API\Runtime\Core\Templates\TReferenceControllerBase)< Mode > * SharedPointerInternals::NewCustomReferenceController ( ObjectType * Object, DeleterType && Deleter ) }